Default track after reset

Yes. The key is putting the default track into a playlist. The current behavior of Sisyphi after bootup, is to play the playlist that was playing when it was last powered. If it was not playing a playlist, it plays the Default playlist. So just create a new playlist with your desired default track in it. Note: if you want a single track in a playlist, you must add it twice (playlists must have more than one track). This is sort of a safeguard against playing a single track in repeat mode, which can cause the ball to retrace the exact same path 100's - 1000's of times - which can cause permanent uneven wear on the cushion material under the sand.